Both black and white rhinoceroses are actually gray. They are different not in color but in lip shape. The black rhino has a pointed upper lip, while its white relative has a squared lip.

The men take pictures ... group Save the Rhino Trust. "The chief aim of Save the Rhino Trust is to protect the black rhinoceros from poachers," says Lesley Karutjaiva, the 47-year-old head of the ...